Zobrazeno 1 - 10
of 2 778
pro vyhledávání: '"Santos, A. H."'
Autor:
Lu, Tianhong, Santos, Luiz H.
The discovery of Fractional Chern Insulators (FCIs) in twisted bilayer MoTe$_2$ has sparked significant interest in fractional topological matter without external magnetic fields. Unlike the flat dispersion of Landau levels, moir\'e electronic states
Externí odkaz:
http://arxiv.org/abs/2406.03530
For $n\ge 1$ we show that the length 1 nested Hilbert scheme of the total space $X_n$ of the line bundle $\mathcal O_{\mathbb P^1}(-n)$, parameterizing pairs of nested 0-cycles in $X_n$, is a quiver variety associated with a suitable quiver with rela
Externí odkaz:
http://arxiv.org/abs/2403.18099
Autor:
de Oliveira, M. Gil, Junior, A. L. S. Santos, Barbosa, A. C., da Silva, B. Pinheiro, Santos, G. H. dos, Cañas, G., Ribeiro, P. H. Souto, Walborn, S. P., Khoury, A. Z.
We investigate theoretically and experimentally the optical second harmonic generation (SHG) with a twisted Gaussian Schell model (TGSM) beam as the fundamental field. We use Type-II phase matching and analyze the cross spectral density (CSD) of the
Externí odkaz:
http://arxiv.org/abs/2403.04040
Autor:
Pullasseri, Lakshmi, Santos, Luiz H.
In two-dimensional electronic lattices, changes in the topology of the Fermi surface (Lifshitz transitions) lead to Van Hove singularities characterized by a divergence in the electronic density of states. Van Hove singularities can enhance the effec
Externí odkaz:
http://arxiv.org/abs/2402.16772
Autor:
Rodrigues, L. M., Fagundes, L. Marques, Salles, D. C., Santos, G. H. dos, Kondo, J. M., Khoury, A. Z., Ribeiro, P. H. Souto, de Araújo, R. Medeiros
We experimentally demonstrate resonance of first-order vector vortex beams (VVB) with a triangular optical cavity. We also show that, due to their symmetry properties, the so-called radial and azimuthal VVBs do not resonate at the same cavity length,
Externí odkaz:
http://arxiv.org/abs/2310.15391
Publikováno v:
Phys. Rev. B 109, 115111 (2024)
Motivated by recent observation of the quantum spin Hall effect in monolayer germanene and twisted bilayer transition-metal-dichalcogenides (TMDs), we study the topological phases of moir\'e twisted bilayers with time-reversal symmetry and spin $s_z$
Externí odkaz:
http://arxiv.org/abs/2309.07222
Cavity materials are a frontier to investigate the role of light-matter interactions on the properties of electronic phases of matter. In this work, we raise a fundamental question: can non-local interactions mediated by cavity photons destabilize a
Externí odkaz:
http://arxiv.org/abs/2308.08588
Publikováno v:
Quantum 8, 1317 (2024)
Accelerated light has been demonstrated with laser light and diffraction. Within the diffracting field it is possible to identify a portion that carries most of the beam energy, which propagates in a curved trajectory as it would have been accelerate
Externí odkaz:
http://arxiv.org/abs/2308.01764
Publikováno v:
Physical Review B 108, 155430 (2023)
Three-dimensional topological insulators support gapless Dirac fermion surface states whose rich topological properties result from the interplay of symmetries and dimensionality. Their topological properties have been extensively studied in systems
Externí odkaz:
http://arxiv.org/abs/2306.11793
While advances in electronic band theory have brought to light new topological systems, understanding the interplay of band topology and electronic interactions remains a frontier question. In this work, we predict new interacting electronic orders e
Externí odkaz:
http://arxiv.org/abs/2303.12833